Padlock for steam-shovels and the like.



W. LANGE. PADLOCK FOR STEAM SHOVELS AND THE LIKE.

APPLICATION FILED OCT. 11, 1913.

Patented Mar. 3, 1914.

IN ENTOR WESSES "ran sratrns PATENT OFFICE.

WILLIAM LANGE, OF TOMKINS COVE, NEW YO RK, ASSIGNOR OF ONE-HALF '10 CALVIN TOMKINS, OF NEW YORK, N. Y.

PADLOCK FOR STEAM-SHOVELS AND THE LIKE.

Specification of Letters Patent.

Application filed October 11, 1913.

Patented Mar. 3, 1914.

Serial No. 794,689.

To all whom t may concern:

Be it known that I, WILLIAM LANGE, a citizen of the United States of America, and a resident of Tomkins Cove, in the county of Rockland and State of New York, have invented certain new and useful Improvements in Padlocks for Steam-Shovels and the like, of which the following is a description, reference being had to the accompanying drawings, 'forming a part of this specification.

My invention relates to padlocks for steam shovels and the like and my improvements consist in a new and improved construction of padlock which tends to obviate the shock or tremor at present very prevalent in such apparatus when occupied in the digging or excavating movement, especially at the beginning of such movement, when the shovel or like part first encounters the matter to be moved.

In the drawing Figure 1 is a side elevation of my improved padlock for shovels and the like; Fig. 2 is an end elevation of the same; Fig. 3 is an end elevation of the frame of the padlock; and Fig. 4c is a detail view of a washer plate.

1.1 is each member of a pair of inverted L-shaped spaced side pieces forming, togcther with a flat connecting and spacing piece 12 located at the upper end of and secured to the inverted L-shaped spaced side pieces 11 by fastenings 13, a connecting and spacing bolt 14; located between the lower ends of the inverted L-shaped spaced side pieces 11 and secured in place by washers 15 and cotter pins 16, and flat side plates 17 spaced from the inverted L-shaped spaced side pieces 11 by filler pieces 18 and secured thereto by fastenings 19, the frame of my improved padlock, the fiat side plates 17 being additionally secured and spaced by bolts 2(), nuts 21 and sleeves 22. The bolts 14- receive the bucket connections in the usual manner. A sheave 23 or its hub is mounted on a sleeve and axle 24:, the ends of the axle being squared and trunnioned in bearings 25 in the side pieces 11. This sheave takes the hoisting rope or chain in the usual manner.

The ends of an inverted U-shaped bar 26 pass downwardly through a pair of holes 27 in the spacing piece 12 and a pair of holes in the flange portions 28 of the side pieces 11 and are prevented from withdrawal by l nuts 29 and washer plates 30 or other suit able fastenings, the washer plates being of such size that, by cutting away a part of each washer plate as shown in Fig. at, the flat edge 31 of each will lie close against the adjacent face of the side piece 11, and keep the inverted U-shaped bar 26 in suflicient alinement therewith, to cause the inverted U-shaped bar to move in a direc tion parallel therewith. A powerful spring 32 is interposed between the washer plate 30 and the corresponding under face of the flange portion of the side piece 11 in each instance. The arched middle portion of the inverted U-shaped bar 26 receives the end of the hoisting rope or chain in the usual manner.

In use, the shock or tremor of contact and chain movement is taken up by the springs without in the least interfering with the accuracy of or direction of movement of the shovel or like device, and the simple and strong construction conduces to its lasting qualities.

Having thus described my invention the following is what I claim as new therein and desire to secure by Letters Patent:

1. A padlock for steam shovels and the like comprising a pair of inverted L-shaped spaced side pieces between which the hoisting sheave is mounted, a connecting and spacing piece located at the upper end of and secured to the flanges of the side pieces, a connecting and spacing bolt located between the lower ends of the side pieces, an inverted U-shaped bar, having its ends passed through the ends of the spacing piece and through the flanges of the side pieces, nuts mounted on the ends of the bar and springs surrounding the ends of the bar between the flanges of the side pieces and the nuts.

2. A padlock for steam shovels and the like comprising a pair of inverted L-shaped spaced side pieces between which the hoisting sheave is mounted, a connecting and spacing piece located at the upper end of and secured to the flanges of the side pieces, a connecting and spacing bolt located between the lower ends of the side pieces, fiat side plates and spacing filling pieces secured to the side pieces, an inverted U-shaped bar having its ends passed through the ends of the spacing piece and through the flanges of the side pieces, nuts mounted on the ends of the bar and springs surrounding the ends I having its ends passed through the ends of of the bar between the flanges of the side i the spacing piece and through the flanges 15 pieces and the nuts. of the side pieces. nuts mounted on the ends 3.},A padlock for steam shovels and the of the bar, guiding washer plates seated 5 like comprising a pair of inverted L-shaped upon the nuts and bearing against the side spaced side pieces between which the hoist- 5 pieces, and springs surrounding the ends ing sheave is mounted a connecting and of the bar between the flanges of the side 20 spacing piece located at the upper end of pieces and the guiding Washer plates on the and secured to the flanges of the side pieces, nuts. 20 a connecting and spacing bolt located bei VILLIAM LANGE.

tween the lower ends of the side pieces, flat i \Vitnesses: side plates and spacing filling pieces secured j J ORDAN S. TUCKER, to the side pieces an inverted U-shaped bar E HENRY S. MOORE.

Copiel of this patent may be obtained for five cents each, by addressing the Comminloner o! Pltutl, Washington, D. G. 

